305/40R12
All technical dimensions and alternatives for this tire size.
| Technical Specs | |
|---|---|
| Diameter | 548.8 mm (21.61 in) |
| Section Width | 305 mm (12.01 in) |
| Sidewall Height | 122 mm |
| Circumference | 1724.1 mm |
| Revs / km | 580 |
| Rim Diameter (in) | R12 (304.8 mm) |
Tire prices in this size
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Alternative sizes (±3%)
Equivalents on other rim diameters
Calculations use nominal dimensions; actual measurements can vary ±1–2% by manufacturer and model. Always follow your owner's manual and door-jamb placard.
305/40R12